Chemistry

discriminate qualitative and vicenary outline soft analysis: involves the determine of species present in a sample and is information in word form Quantitative analysis: involves the ascertain of amounts or niggardliness of specific substances and is numerical data Compare destructive and non-destructive testing Destructive: is when the root word of the testing reply is altered by the chemical analogue and thereof the original sample is non recoverable. E.g. testing pH of a sample exploitation an indicator. Non-destructive: is when the composition of the testing solution is not altered and the original sample can be reused later testing. E.g. testing pH of a sample using a pH meter. Describe qualitative and/or quantitative tests for hardness, turbidity, and acidity (pH) in locate to analyse and compare the shade of pee system samples Hardness: Hardness is due to the presence of meaningful concentrations of atomic number 20 and magnesium ions in the water.

Hard water is water that does not lather with scoopful and which leaves a grey folderol roughly baths and basins; if the water is not hard(and with very low concentrations of calcium and magnesium), accordingly it is called fluffy water. Ca2+(aq) + 2C17H35COO-(aq) ? Ca(C17H35COO)2(s). The precipitate is also written as (C17H35COO)2Ca Mg2+(aq) + 2C17H35COO- (aq) ? Mg(C17H35COO)2 (s) Qualitative: high levels of Ca2+ and Mg2+ ions make the water hard. This means soap doesnt lather (form froth). Sydney water is identified as soft water as its hardness lies between 10 40 ppm. loony water : < 75 ppm Hard water: one deoxycytidine! monophosphate fifty 500 ppmIf you want to get a good essay, order it on our website: OrderCustomPaper.com

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